diff --git a/pkgs/servers/janus-gateway/default.nix b/pkgs/servers/janus-gateway/default.nix
index 9a0ecad23dd4df..34682f7495fa6b 100644
--- a/pkgs/servers/janus-gateway/default.nix
+++ b/pkgs/servers/janus-gateway/default.nix
@@ -44,6 +44,8 @@ stdenv.mkDerivation rec {
 
   makeFlags = [
     "BORINGSSL_LIBS=-L${lib.getLib boringssl}/lib"
+    # Linkding with CXX because boringssl static libraries depend on C++ stdlib.
+    "CCLD=${stdenv.cc.targetPrefix}c++"
   ];
 
   outputs = [ "out" "dev" "doc" "man" ];